The correct answer is D. Sushil Kumar.
Sushil Kumar is an Indian freestyle wrestler who has won three medals at the World Wrestling Championships, two of which are gold. He is the first Indian wrestler to win a medal at the Olympics, and he is also the first Indian wrestler to win a gold medal at the World Wrestling Championships.
Vinay Phogat is an Indian freestyle wrestler who has won a bronze medal at the World Wrestling Championships. He is the younger brother of Geeta Phogat and Babita Kumari.
Sakshi Malik is an Indian freestyle wrestler who won a bronze medal at the 2016 Summer Olympics. She is the first Indian woman to win a medal at the Olympics in wrestling.
Bajrang Punia is an Indian freestyle wrestler who has won a silver medal at the World Wrestling Championships. He is the current world number one in the 65 kg weight class.
Sushil Kumar is the most successful Indian wrestler of all time. He has won three medals at the World Wrestling Championships, two of which are gold. He is also the first Indian wrestler to win a gold medal at the Olympics.